#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();

private slots:
    void on_Button1_clicked();

    void on_Button2_clicked();

    void on_Button3_clicked();

    void on_Button4_clicked();

    void on_Button5_clicked();

    void on_Button6_clicked();

    void on_Button7_clicked();

    void on_Button8_clicked();

    void on_Button9_clicked();

    void on_leftButton_clicked();

    void on_Button0_clicked();

    void on_rightButton_clicked();

    void on_equalButton_clicked();

    void on_divButton_clicked();

    void on_multButton_clicked();

    void on_subButton_clicked();

    void on_addButton_clicked();

    void on_clearButton_clicked();

    void on_delButton_clicked();

private:
    Ui::Widget *ui;
    QString expression;
};
#endif // WIDGET_H
